Timeline for How can my mid-2012 MacBook Pro Retina 15 run a 4K panel at 30Hz over HDMI?
Current License: CC BY-SA 3.0
14 events
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| May 28, 2015 at 6:25 | comment | added | Oleksiy Ivanov | There is differences in GeForce and Iris. For example with 15' rMBP Early 2013 with GeForce I can run two Seiki 39' at 4k 30Hz (one connected HDMI second via mini display port to HDMI adapter). When trying to do the same on 15' rMBP mid 2014 with Iris the same adapter mini display port -> HDMI can output only 1920x1080. | |
| Jul 10, 2014 at 16:08 | comment | added | AntouanK | .@njboot I just tested a 15'' MacBook pro with the same screen and same cable. Works immediately @60Hz!! So what's different? The way I see it is that the GeForce the 15'' has, can enable SST, where the Intel Iris can't (?) | |
| Jul 10, 2014 at 11:23 | comment | added | AntouanK | Wondering how that guy got it working... twitter.com/joewalnes/status/482357258718703616 | |
| Jul 10, 2014 at 9:33 | comment | added | AntouanK | .@njboot ASUS's repsonse is "Unfortunately the Asus PB287Q is not compatible with the Macbook and therefore you cannot run it on 60 hz." I obviously replied to them demanding a better explanation. My guess is that the MBP doesn't support SST ( which seems to be the way ASUS monitor works, rather than with MST ) | |
| Jul 9, 2014 at 9:41 | comment | added | njboot | .@AntouanK Thanks for passing that along, though I can't make sense of how a monitor could use SST for 60 Hz 4K display given the input. The whole point of implementing MST for 60 Hz is to enable one to use the maximum bandwidth available when connecting a single monitor rather than reserving such for Daisy-chaining or the likes. As I stated, contact the manufacturer of the display for assistance in this regard. If they claim such, and you paid that $$$, it should work as described. Best of luck. | |
| Jul 9, 2014 at 9:26 | comment | added | AntouanK | @njboot I don't think it uses MST. "One of the first displays to support for 4K resolutions at 60Hz via DisplayPort’s Single-Stream Transport (SST) mode is the ASUS PB287Q. legitreviews.com/… " | |
| Jul 9, 2014 at 4:33 | comment | added | njboot | .@AntouanK Your MBP does indeed support 60 Hz @4K via the Thunderbolt 2 port (which contains DP 1.2 technology) . But, the caveat is it needs to be DP 1.2 > DP 1.2. IE, you can't use an adapter (say DP 1.2 > HDMI on the display). As long as the display has a DP 1.2 input, you have a Thunderbolt 2 cable, and Multi-stream transport enabled on the external display it should work. You need to enable MST. Ask the manufacturer of the 4k display how to do so. BOL. | |
| Jul 8, 2014 at 20:00 | comment | added | AntouanK | @njboot Late 2013 MacBook Pro 13'', with OS X 10.9.4 (13E28). I contacted the company that makes the cable and they insist that it supports DP1.2 and 60Hz. They asked me whether MacBook supports HBR2... Also, when I have the ASUS screen on 1080p from the OSX display settings ( so you get 1080p with retina quality ), I get two selections for 30Hz! But ASUS still shows it gets 4k resolution @ 30Hz. | |
| Jul 8, 2014 at 19:51 | comment | added | njboot | @AntouanK What model machine do you have? Late 2013 Mac/MBP are only models equipped with DP 1.2 (aka Thunderbolt 2). Without these models, the limitation is on your Mac's end, not the monitor's. | |
| Jul 8, 2014 at 16:06 | comment | added | AntouanK | @njboot Got the ASUS PB287Q, got it to DP1.2, but I still get 30Hz only! Is the cable a possible factor for that? ( I got this one amazon.co.uk/StarTech-com-Mini-DisplayPort-Adapter-Cable/dp/… ) | |
| Jul 3, 2014 at 6:13 | comment | added | njboot | @DeepSpace101 you may manage to get it running via the HDMI port. Not sure about 30 Hz though, maybe 24? It definitely won't run via Thunderbolt port at all, though. BOL. | |
| Jul 3, 2014 at 6:06 | comment | added | DeepSpace101 | Another thread with more positive responses ... let's see! I get the display soon, worse case I have an extra 4K TV :) ! | |
| Jul 3, 2014 at 5:49 | comment | added | DeepSpace101 | I have the mid-2012 model actually (updated screenshot). Also after I got your answer, I found some anecdotal evidence here and here that it might actually work. I'll post my own results too ... | |
| Jul 3, 2014 at 4:46 | history | answered | njboot | CC BY-SA 3.0 |